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Summary: Methods

# Principal

`public interface Principal`
``

java.security.Principal

Known indirect subclasses Group, GroupPrincipal, Identity, IdentityScope, Signer, UserPrincipal, X500Principal
Group | This interface is used to represent a group of principals.
GroupPrincipal | A `UserPrincipal` representing a group identity, used to determine access rights to objects in a file system.
Identity | This class is deprecated. This class is no longer used. Its functionality has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
IdentityScope | This class is deprecated. This class is no longer used. Its functionality has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
Signer | This class is deprecated. This class is no longer used. Its functionality has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
UserPrincipal | A `Principal` representing an identity used to determine access rights to objects in a file system.
X500Principal | This class represents an X.500 `Principal`.

This interface represents the abstract notion of a principal, which can be used to represent any entity, such as an individual, a corporation, and a login id.

See also:

- `X509Certificate`

## Summary

### Public methods
`abstract boolean` | `equals(Object another)` Compares this principal to the specified object.
`abstract String` | `getName()` Returns the name of this principal.
`abstract int` | `hashCode()` Returns a hashcode for this principal.
`default boolean` | `implies(Subject subject)` Returns true if the specified subject is implied by this principal.
`abstract String` | `toString()` Returns a string representation of this principal.

## Public methods

### equals

    public abstract boolean equals (Object another)

Compares this principal to the specified object. Returns true if the object passed in matches the principal represented by the implementation of this interface.

Parameters
`another` | `Object`: principal to compare with.

Returns
`boolean` | true if the principal passed in is the same as that encapsulated by this principal, and false otherwise.

### getName

    public abstract String getName ()

Returns the name of this principal.

Returns
`String` | the name of this principal.

### hashCode

    public abstract int hashCode ()

Returns a hashcode for this principal.

Returns
`int` | a hashcode for this principal.

### implies

    public boolean implies (Subject subject)

Returns true if the specified subject is implied by this principal.

The default implementation of this method returns true if `subject` is non-null and contains at least one principal that is equal to this principal.

Subclasses may override this with a different implementation, if necessary.

Parameters
`subject` | `Subject`: the `Subject`

Returns
`boolean` | true if `subject` is non-null and is implied by this principal, or false otherwise.

### toString

    public abstract String toString ()

Returns a string representation of this principal.

Returns
`String` | a string representation of this principal.

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